VulnerabilityModified

CVE-2022-27644

This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers.

HIGH 8.8EPSS 0.34%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.34%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

This vulnerability allows network-adjacent attackers to compromise the integrity of downloaded information on affected installations of NETGEAR R6700v3 1.0.4.120_10.0.91 routers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the downloading of files via HTTPS. The issue results from the lack of proper validation of the certificate presented by the server. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-15797.

CVSS 3.1: 8.8 HIGHCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.34% probability · 27th percentile
CISA KEV: Not listed
Weakness: CWE-295
Affected: netgear/r6400 firmware · netgear/r6700 firmware · netgear/r6900p firmware · netgear/r7000 firmware · netgear/r7000p firmware · netgear/r7850 firmware · netgear/r7960p firmware · netgear/r8000 firmware · netgear/r8000p firmware · netgear/rax200 firmware · netgear/rax75 firmware · netgear/rax80 firmware · netgear/rs400 firmware · netgear/cbr40 firmware · netgear/lbr1020 firmware · netgear/lbr20 firmware · netgear/rbr10 firmware · netgear/rbr20 firmware · netgear/rbr40 firmware · netgear/rbr50 firmware · +4 more
Source: zdi-disclosures@trendmicro.com

References

https://kb.netgear.com/000064721/Security-Advisory-for-Multiple-Vulnerabilities-on-Multiple-Products-PSV-2021-0324Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-520/Third Party Advisory, VDB Entry
https://kb.netgear.com/000064721/Security-Advisory-for-Multiple-Vulnerabilities-on-Multiple-Products-PSV-2021-0324Vendor Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-520/Third Party Advisory, VDB Entry

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.